Pipe Oxidation Removal Tool

ABSTRACT

A pipe cleaning tool for cleaning pipe surfaces is configured for operative engagement with a drill motor. The cleaning tool includes a body having a sidewall extending between a first end and a second end of the body. Cleaning blades located in each of a plurality of slots which extend to respective openings in the sidewall of the body. The cleaning blades are biased to project past the sidewall and thereby contact a pipe surface positioned adjacent the sidewall to clean the pipe surface of oxidation and dirt when the body of the cleaning tool is rotated by the engaged drill motor.

This application is a Continuation of U.S. patent application Ser. No.16/756,124 filed Apr. 15, 2020, which is a U.S. National Phase filing ofInternational Application Number PCT/US19/46571 filed on Apr. 14, 2019,which claims the benefit of U.S. Provisional Patent Application Ser. No.62/718,573 filed on Aug. 14, 2018, which is incorporated herein in itsentirety by this reference thereto.

FIELD OF THE INVENTION

The device herein is generally related to pipe oxidation removal. Moreparticularly, it relates to a power driven device configured forrotational positioning upon pipe end exterior surfaces and the interiorsurfaces of pipe fittings to remove oxidation and dirt and the likeprior to soldering of the pipes with the fittings.

BACKGROUND OF THE INVENTION

In the field of residential and commercial plumbing, copper pipe iswidely employed for carrying pressurized fluids, such as water, througha supply system in houses and commercial buildings. In assembling suchsystems, conventionally professional plumbers, as well as do it yourselfhomeowners, perform the task widely referred to as “sweating copper.”

Sweating copper is another term for the task of soldering a pipe orjoint to an engageable pipe fitting for the purpose of connecting thetwo fluid-carrying components in an operative sealed engagement whichwill handle internal pressure. Such is a widely employed basic plumbingprocess employed in building and retrofit construction projectsthroughout the world. During the process of sweating copper or othertubing to be soldered, it is extremely important that all surfaces ofcontact between the pipe and the fitting to be engaged be properlyprepared. Such preparation conventionally involves the removal of anydirt, grime, and especially oxidation, from the two surfaces to bejoined with solder. Without this preparation, a leak-proof connectionbetween the pipe and fitting cannot be guaranteed.

Conventionally, this task of cleaning and removal of oxidation isaccomplished by sand paper or emery cloth or a wire brush in atime-consuming action. The user must essentially use sand paper or thewire brush to impart an abrasive action to the surfaces to be joined toremove the dirt or oxidation therefrom. During the process they mustcontinually stop the use of the brush or sand paper or other abrasiveobject and inspect the pipe and fitting surface being treated. Shouldsuch visual inspection show areas on the pipe of fitting still in needof oxidation or dirt removal, the process is repeated.

As can be discerned, when attempting such oxidation and dirt removal inthe dark confines of a basement or cupboard or crawlspace, visuallyascertaining clean surfaces is challenging at best. Further, the processis extremely time consuming and fraught with the potential that thesurfaces treated are not properly cleaned. While improper cleaning ofoxidation and grime may not immediately cause a fluid leak at thesoldered joints, over time there is a huge potential for such. However,fluid leaks at a subsequent date after the building is completed and theplumbing is hidden in walls and floors and the like, can causestructural damage as well as damage to building contents. Still further,fixing such a leak will require walls or floors to be cut to provideaccess to the offending pipes.

The device herein provides a tool configured to easily remove alloxidation and dirt and grime from the exterior of pipes and the interiorof fittings to which the pipes are to be soldered. Using the discloseddevice a user, in short order, can achieve pipes and fittings which aretotally clean and ready for soldering to form soldered joints which willlast for years without fear of oxidation or grime causing impropersoldering which yields leaky and failed connections.

It should be noted, the forgoing examples of related art and limitationsrelated therewith in the field of pipe and joint soldered connectionsare intended to be illustrative and not exclusive, and they do not implyany limitations on the device and method described and claimed herein.Various limitations of the related art are already known or will becomeapparent to those skilled in the art upon a reading and understanding ofthe specification below and the accompanying drawings

SUMMARY OF THE INVENTION

The present invention is directed toward a device and method forcleaning the surfaces of pipe and fittings, such as copper pipe, priorto soldering of pipe sections to fittings engaged with them. The devicein both modes features a body which is adapted to engage with a poweredmotor for rotation, such as a hand drill. Each body has a plurality ofslots formed therein, for operative positioning of a plurality ofabrasive cleaning blades. Biasing members or tension springs, such asleaf or coil springs contacting a base of each abrasive cleaning blades,impart a force or bias of the blade toward the surface of pipe orfitting to be cleaned.

The cleaning blades each have a base portion which is formed with aledge to limit the biased travel of the abrasive cleaning blades withinthe respective slot it occupies. Currently, the abrasive portion isformed of composite material consisting of coarse-particle aggregatepressed and bonded together by a cementing matrix in a compositeincluding one or a combination of abrasive materials from a groupincluding aluminum oxide, silicon carbide, ceramic, diamond, and cubicboron nitride. Of course, other aggregate material as would occur tothose skilled in the art may be employed and is considered within thescope of the claims herein.

In one mode of the device herein, the device is configured to bepositioned within the interior of the pipe fitting to remove internaloxidation or debris. In an alternative mode, the device is configuredfor positioning around the outside surface of the pipe or pipe fittingto remove external oxidation or debris.

In all modes of the device herein, the device is configured with a bodyhaving slots formed therein. Each of the slots has a cleaning bladetherein which is biased by a spring member. Each spring member contactsa base on one side which is engaged to an abrasive portion on anopposite side.

The spring member is positioned to impart a biasing force to thecleaning blade to urge it in a direction toward and against the positionof a pipe surface to be cleaned. It is preferred in all modes of thedevice that the body holding the cleaning blades is configured for aconnection to a powered rotation tool such as a hand drill, which willimpart rotation to the body during use.

Additionally common to all modes of the device herein, the body isformed with a sidewall extending between a first end and a second of thebody. The first end of the body is adapted for operative engagement to adrill motor, which will impart a powered rotation to the body of thedevice.

The body of the device has a plurality of slots therein runninggenerally parallel to a longitudinal axis of the body. Each of the slotsin the plurality of slots extends to a respective opening positioned inthe sidewall of the main body. Located in each slot, is a respectivecleaning blade having a base with a first side in contact with a biasingmember located in the respective slot. An abrasion portion of eachcleaning blade is engaged to a second side of the base, and as eachbiasing member imparts a force to a respective cleaning blade, it urgesthe abrasion portion to extend from the opening of the respective lotand outside the body, in a direction toward the pipe surface to becleaned. A removable cap on the second end of the body, provides accessto the slots to allow replacement of the cleaning blades when worn.

In this configuration, with the body operatively coupled to a poweredmotor such as a drill motor, powered rotation of the body will rotatethe plurality of biased cleaning blades against the surface of the pipeor fitting, thereby removing oxidation or debris therefrom.

The device may be provided in one or two modes of operation. In a firstmode, the body is configured for positioning within the internal cavityof a pipe fitting or pipe for cleaning of an inner wall surface. In asecond mode of configuration, the device may be provided with the bodyconfigured with an internal cavity with which the biased cleaning bladescommunicate, to clean the exterior surface of the pipe positioned withinthe internal cavity. In a particularly preferred mode of the deviceherein, two bodies are provided to allow either inner wall cleaning orouter wall cleaning, and the body for inner wall cleaning is adapted tonest within the cavity of the body for outer wall cleaning when not inuse. Either of the two modes of the body and device, can be providedalone without the other and such is anticipated.

As used in the claims to describe the various inventive aspects andembodiments, “comprising” means including, but not limited to, whateverfollows the word “comprising”. Thus, use of the term “comprising”indicates that the listed elements are required or mandatory, but thatother elements are optional and may or may not be present. By“consisting of” is meant including, and limited to, whatever follows thephrase “consisting of”. Thus, the phrase “consisting of” indicates thatthe listed elements are required or mandatory, and that no otherelements may be present. By “consisting essentially of” is meantincluding any elements listed after the phrase, and limited to otherelements that do not interfere with or contribute to the activity oraction specified in the disclosure for the listed elements. Thus, thephrase “consisting essentially of” indicates that the listed elementsare required or mandatory, but that other elements are optional and mayor may not be present depending upon whether or not they affect theactivity or action of the listed elements. Further, where employedherein, by the term “substantially” unless otherwise specificallydefined, is meant, plus or minus five percent.

It is an object of this invention to provide a device and system foreasy and complete cleaning of the exterior and/or interior surfaces ofpipes and fittings prior to such being soldered.

It is a further object of this invention to provide such a device whichemploys easily replaceable slot-engaged abrasive cleaning blades.

It is yet a further object of this invention to provide an abrasive pipecleaning system adapted for engagement to a powered rotating tool suchas a hand drill to allow widespread use without the need to buyexpensive hand tools.

The invention, accordingly, comprises the features of construction,combination of elements, and arrangement of parts which will beexemplified by the constructions hereinafter set forth, and the scope ofthe invention will be indicated in the claims.

With respect to the above summary description, before explaining atleast one preferred embodiment of the herein disclosed eye treatmentsystem in detail, it is to be understood that the invention is notlimited in its application to the details of construction and to thearrangement in the following description or illustrated in the drawings.The pipe and fitting surface cleaning device and system hereindescribed, is capable of other embodiments and of being practiced andcarried out in various ways which will become obvious to those skilledin the art on reading this disclosure. Also, it is to be understood thatthe phraseology and terminology employed herein are for the purpose ofdescription and should not be regarded as limiting.

As such, those skilled in the art will appreciate that the conceptionupon which this disclosure is based, may readily be utilized as a basisfor designing other rotating abrasive pipe surface cleaning systems anddevices, and for carrying out the several purposes of the presentdisclosed system. It is important, therefore, that the claims herein beregarded, as including such equivalent construction and methodology aswould occur to those skilled in the art subsequent to reading thisdisclosure, insofar as they do not depart from the spirit and scope ofthe present invention.

BRIEF DESCRIPTION OF DRAWING FIGURES

The accompanying drawings, which are incorporated herein and form a partof the specification, illustrate some, but not the only or exclusiveexamples of embodiments and/or features of the pipe and fitting cleaningand preparation invention. It is intended that the embodiments andfigures disclosed herein are to be considered illustrative rather thanlimiting.

In the drawings:

FIG. 1 depicts a front perspective view of a mode of the device hereinhaving the body configured for removing oxidation from the internalpassage of a metal pipe, showing the plurality of abrasive cleaningblades in a biased sliding engagement within slots formed in a body,which are biased to a projecting position from the slots.

FIG. 2 is a side view of the device of FIG. 1 , showing one of theplurality of cleaning blades formed with the vertical and horizontaledges of the leading corner being substantially perpendicular to eachother, and the remainder of leading corners of the plurality of cleaningblades being preferably a beveled leading corner edge.

FIG. 3 depicts the device of FIGS. 1-2 operatively engaged with aninterior surface of a metal pipe or cap shown in dotted line, depictingthe preferred leading corner having substantially perpendicular edgescleaning the interior surface up to an end cap of the fitting, and theother two leading corners being beveled for aiding in insertion.

FIG. 4 shows a second end or leading end view of the body of the deviceof FIGS. 1-3 , depicting biasing members such as springs forcing thethree radially positioned cleaning blades to project from slots formedin the body, in a direction away from the axis thereof.

FIG. 5 depicts the device as in FIG. 3-4 showing the easy replacement ofworn cleaning blades once an endcap is removed from the leading orsecond end of the body.

FIG. 6 shows a mode of the device where the body is configured forcleaning the exterior surface of a pipe or tube having the cleaningblades positioned in the slots formed in the body which are biasedtoward an internal cavity and longitudinal axis of the body to projectthrough blade openings into a cleaning chamber.

FIG. 7 shows a view of the device of FIG. 6 from a leading or front endthereof and shows springs biasing the cleaning blades to project towarda central axis and into the cleaning chamber.

FIG. 8 depicts a rear view of the device of FIGS. 6-7 showing a memberextending from a rear end of the body which is adapted to engage arotating tool such as a drill.

FIG. 9 depicts the device as in FIG. 6-7 , showing the front cap removedallowing removal and replacement of the cleaning blades.

FIG. 10 depicts a typical cleaning blade for the device of FIGS. 6-9 ,showing an abrasive portion engaged to one side of a base defining aledge which limits the travel of the cleaning blade toward the cleaningchamber when engaged as in FIG. 9 .

FIG. 11 is an exploded view of the device of FIG. 1 and FIG. 6 , showingthat when provided with both body types together, the two can engage toa nesting configuration as in FIG. 12 for storage and transport.

FIG. 12 depicts the device with the body as in FIG. 1 nested into thecleaning cavity of the device with the body configuration of FIG. 6 ,and held by the biased contact of the cleaning blades.

DETAILED DESCRIPTION OF THE EXEMPLARY EMBODIMENTS

In this description, any directional prepositions if employed, such asup, upwardly, down, downwardly, front, back, first, second, first end,second end, top, upper, bottom, lower, left, right and other such termsrefer to the device or depictions as such may be oriented are describingsuch as it appears in the drawings and are used for convenience only.Such terms of direction and location are not intended to be limiting orto imply that the device herein has to be used or positioned in anyparticular orientation.

Now referring to drawings in FIGS. 1-12 , wherein similar components areidentified by like reference numerals, there is seen in FIG. 1 a frontperspective view of a mode of the device 10 herein having a body 12having a longitudinal axis 17 with the body 12 configured for removingoxidation from the internal passage of a metal pipe 32 such as in FIG. 3. As shown, the body 12 has a sidewall 14 extending between a first end16 and a second end 18. A plurality of abrasive cleaning blades 20 arerespectively located in a biased sliding engagement within slots 22formed into the body 12. Each cleaning blade 20 is spring loaded orbiased by a spring member to place a portion thereof projecting from theslots 22.

In FIG. 2 is shown a side view of the device of FIG. 1. As depicted, oneof the plurality of cleaning blades 20 has a rectangular leading corneredge 21. By leading corner edge is meant the corner of a cleaning blade20 which contacts the pipe surface when inserted therein or therearound. By rectangular leading corner is meant that the leading corneris formed with the horizontal edge 24 of the abrasive material 25 andthe vertical edge thereof 26, running substantially perpendicular toeach other. The leading corner of the other cleaning blades 20 have abeveled portion 28 communicating between the horizontal edge 24 and thevertical edge 26 thereof.

Also shown in FIG. 2 , is the first end 16 configured for engagementwith a motor such as a drill motor, through the provision of either amounting recess 29 for an engagement member 31, formed into the firstend 16 of the body 12, or affixing an engagement member 31 to the firstend 16 of the body 12. The engagement member 31 is employable to form anoperative engagement with the chuck of a hand drill (not shown but wellknown).

The rectangular leading corner edge 21 is particularly preferred, asshown in FIG. 3 , to allow the device 10 to reach as far as possiblealong the interior wall 30 of a capped pipe 32 such as in FIG. 3 , toremove oxidation. The other of the plurality of cleaning blades 20 withthe respective leading corners having beveled portion 28 are preferred,to better enable the insertion of the device 10 as in FIGS. 1-2 , intothe interior of a pipe 32 during use. Thus, while the device 10 of FIGS.1-5 will function with just beveled portions 28 on all of the cleaningblades 20, it functions better to clean more of the interior wall 30 ofcapped pipe 32 fittings, which are frequently used, and it is preferredfor the mode of the device 10 for use on interior walls 30, that therectangular leading corner edge 21 be included.

Also preferred in the device 10 as shown in FIG. 3 and FIG. 7 , aredebris collection openings 36 formed into the body 12. These debriscollection openings 36 are particularly preferred as they collect thedebris and oxidation which the cleaning blades 20 grind from the pipe 32surface, such as the interior wall 30 shown in FIG. 3 or the exteriorwall 39 as in FIG. 7 . While the device 10 will function without thesedebris collection openings 36 in a significant improvement over thecurrent art, without these debris collection openings 36 formed into thebody 12, in experimentation with the device 10, the debris from the pipesurface can build up and cause the cleaning to be less effective.

In FIGS. 3-5 are shown, the second end 18 of the body 12 in differentviews. At the second end 18 of the body 12 in all modes of the device 10herein, is preferably positioned a removable cap 40 which allows for theeasy replacement of the cleaning blades 20, when worn, into the slots 22from the first end 18 when the cap 40 is removed. The cap 40 is held tothe body 12, by a removable fastener such as a screw 42.

Also shown, are cap slots 44 formed into the cap 40. These are mostpreferred as when the cap 40 is engaged to the second end 18 of the body12, it allows a leading portion 45 of the abrasion portion 25 of thecleaning blades 20, to project into the cap slots 44, and forward of thesecond end 18 of the body 12. The leading portion 45 is shown projectingin for example FIG. 4 , and in the mode of the device 10 of FIG. 6 . Thecap 40 has alignment pins 46 which engage within alignment recesses 47to prevent the cap 40 from rotating during high speed rotation on use,to prevent misalignment of the cap slots 44 and slots 20 in the body 12.In the mode of the device 10 of FIG. 6-9 , screws 40 engage in holes inthe body 12 and maintain this alignment of the cap slots 44 with theslots 22 in the body 12.

Shown in FIG. 4-5 , the cleaning blades 20 are all slidably positionedwithin the slots 22 formed into the body 12, and a biasing member 48located in each respective slot 22 serves to impart a biasing force tothe cleaning blade 20 to cause the abrasive portion 25 to projectthrough blade openings 50 in the sidewall 14 aligned with the slots 22,for a distance from the sidewall 14.

As can be seen in FIG. 4 , the cap has an engaged position with the capslots 44 held aligned with the slots 22 in the body 12 and a disengagedposition shown in FIG. 5 where the cap 40 is shown in a removedposition. With the cap in the removed position, as noted, the cleaningblades 20 may be removed from the respective slot 22 it occupies andreplaced.

In FIG. 5 and FIG. 10 , the cleaning blades 20 are shown in a preferredconfiguration. A blade base 52 having a first side 54 configured tocontact against the biasing member 48 such as a spring, and has theabrasive portion 25 of the cleaning blade 20 connected to a second side56 of the blade base 52. This blade base 52 is preferred in all modes ofthe device 10 herein as it has a ledge 58 projecting along side edgeswhich contacts a ridge 60 adjacent the blade openings 50 in the body 12and limits the travel of the cleaning blades 20 and the abrasion portion25 thereof, toward and through said blade openings 50. This travellimitation insures that the size of a projecting area of the abrasiveportion 25 of the cleaning blade 20 extending from the sidewall 14through the blade opening 50, is maintained substantially equal for allof the plurality of cleaning blades 20. This equal extension helpsmaintain balance to the device 10 as it is rotated during use.

Additionally shown in FIG. 5 and FIG. 10 , are elongated beveledsurfaces 62 positioned between the horizontal edge 24 and side surfaces64 of the abrasive portion 25 of the cleaning blades 20. While thedevice 10 will function much better than existing art for cleaning pipeswithout these beveled surfaces 62 on the cleaning blades 20, if wasfound in experimentation, that debris was better deposited in the debriscollection openings 36 during use, when the beveled surfaces 62 areincluded.

Shown in FIGS. 6-10 is a mode of the device 10 which operates in thesame fashion as that of FIGS. 1-5 , which has the body 12 configuredwith a circular shaped interior cavity 13 surrounded and defined by thesidewall 14 which encircles the longitudinal axis 17 of the body. Thebody 12 is configured at the first end 16 for operative engagement witha rotating motor such as the chuck of a hand drill, either inclusion ofthe engagement member 31 in an attachment to the first end 16, orprovision of a mounting recess 29 sized for a conventionally usedengagement member.

This mode of the device 10 as noted operates in the same fashion as thatof FIGS. 1-5 , wherein each of the cleaning blades 20 are slidablypositioned with a respective slot 22 which communicates with arespective blade opening 50 in the sidewall 14 which defines thediameter of the interior cavity 13 into which a pipe 32 is inserted toclean the exterior wall 39 such as in FIG. 7 .

In the same fashion as that of FIGS. 1-5 , and shown in FIGS. 7 and 9 ,the cleaning blades 20 slidably positioned in the slots 22 formed in thebody 12 are biased to project through the blade openings 50 aligned withthe slots 22 and past the sidewall 14, and toward the longitudinal axis17 running through the internal cavity 13.

Shown also in FIG. 7 , is the cap 40 in the engaged position at thesecond end 18 of the body 14 with the cap slots 44 aligned with theslots 22 formed in the body 12. Fasteners such as screws 42 hold the cap40 in the engaged position of FIG. 7 , and are removable to allow thecap to be disengaged to the removed position of FIG. 9 . With the cap 40removed, in the same fashion as noted above, the individual cleaningblades 20 may be removed and replaced.

The preferred debris collection openings 36 are shown in FIGS. 6-9 whichas noted, provide a collection area for oxidation material removed fromthe pipe during use and enhance operation of the device 10.

In FIG. 10 is shown an enlarged view of the cleaning blades 20 usedherein in all modes of the device 10. As shown the blade base 52 has afirst side 54 for contact with the biasing members 48 such as springspositioned in the slots 22. The abrasive portion 25 of the cleaningblades 20 is connected to a second side 56 of the blade base 52. A ledge58 extends past both side surfaces 64 of the abrasive portion 25 andservice as a stop when contacting the ridge 60 adjacent the bladeopenings 50 which are aligned with the slots 22.

Additionally shown are the leading portion 45 of the abrasive 25projecting forward from the blade base 54. The leading portion 45projects into the cap slots 44 formed into the cap 40 such as shown inFIG. 5 and configured in the cap 40 of FIGS. 6-8 in the same fashion soas to align with the slots 22 in the body 12 at the second end 18 of thebody 14. In this fashion, removal of the cap 40 as noted, provides theuser easy access to the plurality of slots 22 so they may remove andreplace any of the cleaning blades 20 as needed.

As noted, the device 10 functions in the same fashion in both the modefor exterior pipe cleaning and interior pipe leaning and can be providedin singular versions in such configurations. It may also be providedwith the body 12 in both configurations such as shown in FIG. 11 ,allowing the user to choose which to employ depending on the task to becompleted.

When provided in a set of both body 12 configurations, the device 10 isconfigured so that the body 12 formed for interior pipe cleaning willnest within the internal cavity 13 of the body 12 formed for externalpipe surface cleaning such as in FIG. 12 . The biased contact of thecleaning blades 20 extending from the sidewall 14 of the body 12configured for internal pipe cleaning, will frictionally engage thesidewall 14 of the body 12 configured for external pipe surface cleaningand maintain this nesting during storage.

Although the invention has been described with respect to particularembodiments thereof, it should be realized that various changes andmodifications may be made therein without departing from the spirit andscope of the invention. While the invention as shown in the drawings anddescribed in detail herein discloses arrangements of elements ofparticular construction and configuration for illustrating preferredembodiments of structure and method of operation of the presentinvention, it is to be understood, however, that elements of differentconstruction and configuration and other arrangements thereof, otherthan those illustrated and described, may be employed in accordance withthe spirit of this invention. Any and all such changes, alternations andmodifications as would occur to those skilled in the art are consideredto be within the scope of this invention as broadly defined in theappended claims.

Further, the purpose of the attached abstract is to enable the U.S.Patent and Trademark Office and the public generally, especiallyscientists, engineers and practitioners in the art who are not familiarwith patent or legal terms or phraseology to determine quickly, from acursory inspection, the nature and essence of the technical disclosureof the application. The abstract is neither intended to define theinvention of the application, which is measured by the claims, nor is itintended to be limiting as to the scope of the invention in any way.

What is claimed is:
 1. A pipe cleaning tool configured for engagementwith a drill motor, comprising: a body having a sidewall running betweena first end and a second end of said body; said first end of said bodyconfigured for engagement with a drill motor; a plurality of slotsextending along the body substantially parallel to a longitudinal axisof said body; each of said plurality of slots communicating with arespective blade opening in said sidewall of said body; a plurality ofcleaning blades, one each of said plurality of cleaning bladespositioned in a respective one of each of said plurality of slots; eachsaid cleaning blade having a base having a first surface; each saidcleaning blade having an abrasion portion thereof positioned on a secondsurface of said base, opposite said first surface; a biasing memberpositioned in each respective slot and contacting a said first surfaceof a base of a respective said cleaning blade positioned therein, with abiasing force; said biasing force urging each said cleaning blade to aprojecting position, said projecting position having said abrasionportion of said cleaning blade projecting through a said blade opening;wherein a pipe surface positioned to contact said abrasion portions ofsaid plurality of cleaning blades, is cleaned of oxidation by saidabrasion portions of said cleaning blades during rotation of said bodywhile coupled to said drill motor.
 2. The pipe cleaning tool of claim 1,additionally comprising: each respective said slot, extending to a slotopening at said second end of said body; a cap, said cap engageable tosaid second end of said body with a fastener; said cap having an engagedposition in a fixed connection to said second end, said cap in saidengaged position covering said slot openings; said cap having a removedposition exposing said plurality of slot openings; and each saidcleaning blade in said plurality thereof, being removably positionableinto a respective slot, through a respective slot opening from saidsecond end of said body with said cap in said removed position, wherebyeach of said cleaning blades in said plurality thereof, may be replacedby sliding it from said slots with said cap in said removed position. 3.The pipe cleaning tool of claim 1, additionally comprising: saidabrasion portion of at least one of said plurality of cutting bladeshaving a substantially rectangular leading corner; and a respectiveleading corner of the other of said plurality of cutting blades having abeveled edge at said leading corner.
 4. The pipe cleaning tool of claim2, additionally comprising: said abrasion portion of at least one ofsaid plurality of cutting blades having a substantially rectangularleading corner; and a respective leading corner of the other of saidplurality of cutting blades having a beveled edge at said leadingcorner.
 5. The pipe cleaning tool of claim 1, additionally comprising: acollection opening formed in said body, said collection openingcollecting said oxidation removed by said abrasion portions.
 6. The pipecleaning tool of claim 2, additionally comprising: a collection openingformed in said body, said collection opening collecting said oxidationremoved by said abrasion portions.
 7. The pipe cleaning tool of claim 3,additionally comprising: a collection opening formed in said body, saidcollection opening collecting said oxidation removed by said abrasionportions.
 8. The pipe cleaning tool of claim 4, additionally comprising:a collection opening formed in said body, said collection openingcollecting said oxidation removed by said abrasion portions.
 9. The pipecleaning tool of claim 1, additionally comprising: said sidewalldefining an exterior circumference of said body.
 10. The pipe cleaningtool of claim 2, additionally comprising: said sidewall defining anexterior circumference of said body.
 11. The pipe cleaning tool of claim3, additionally comprising: said sidewall defining an exteriorcircumference of said body.
 12. The pipe cleaning tool of claim 4,additionally comprising: said sidewall defining an exteriorcircumference of said body.
 13. The pipe cleaning tool of claim 8,additionally comprising: said sidewall defining an exteriorcircumference of said body.
 14. The pipe cleaning tool of claim 1,additionally comprising: said sidewall defining a circular wall of aninterior cavity of said body, said circular wall surrounding alongitudinal axis of said body.
 15. The pipe cleaning tool of claim 2,additionally comprising: said sidewall defining a circular wall of aninterior cavity of said body, said circular wall surrounding alongitudinal axis of said body.
 16. The pipe cleaning tool of claim 3,additionally comprising: said sidewall defining a circular wall of aninterior cavity of said body, said circular wall surrounding alongitudinal axis of said body.
 17. The pipe cleaning tool of claim 4,additionally comprising: said sidewall defining a circular wall of aninterior cavity of said body, said circular wall surrounding alongitudinal axis of said body.
 18. The pipe cleaning tool of claim 5,additionally comprising: said sidewall defining a circular wall of aninterior cavity of said body, said circular wall surrounding alongitudinal axis of said body.
 19. The pipe cleaning tool of claim 9,additionally comprising: a ridge formed in each said slot adjacent arespective said blade opening aligned therewith; each said base of eachsaid cleaning blade having a ledge thereon; and contact of said ledgewith said ridge limiting a distance of travel of said abrasion portionthrough said blade openings.
 20. The pipe cleaning tool of claim 14,additionally comprising: a ridge formed in each said slot adjacent arespective said blade opening aligned therewith; each said base of eachsaid cleaning blade having a ledge thereon; and contact of said ledgewith said ridge limiting a distance of travel of said abrasion portionthrough said blade openings.